MSP432E401Y: ADC channels above 15 don't seem to work

Michael Colbert

Part Number: MSP432E401Y

I am trying to get the continuous sampling demo to work on channels above 15. I modified the appropriate files and can get all channels below 15 to work. I suspect something in the register settings but haven't been able to track down what the definitions mean and where they get set. Any suggestions?

over 6 years ago

0 Chris Sterzik over 6 years ago

TI__Guru 66721 points

This is a known issue, please refer to the following:

e2e.ti.com/.../2617581

We plan on having this fix in the next release.

Regards,
Chris

0 Michael Colbert over 6 years ago in reply to Chris Sterzik

Prodigy 140 points

What is the logic behind the fix? This message addresses port A19 what is the fix for A16?
#define ADCBufMSP432E4_PK_0_A16 ?

0 Michael Colbert over 6 years ago in reply to Michael Colbert

Prodigy 140 points

Ok, looks like you redefined the upper ports. I'll try it. Thanks.

0 Chris Sterzik over 6 years ago in reply to Michael Colbert

TI__Guru 66721 points

In the .c file :

#define pinConfigChannel(config) (((config) >> 16) & 0x10F)

In the .h file:

#define ADCBufMSP432E4_PK_0_A16 (((16-16) << 16) | 0x6101 | 0x01000000)
#define ADCBufMSP432E4_PK_1_A17 (((17-16) << 16) | 0x6102 | 0x01000000)
#define ADCBufMSP432E4_PK_2_A18 (((18-16) << 16) | 0x6104 | 0x01000000)

and so on.

Regards,

Chris

0 Michael Colbert over 6 years ago in reply to Chris Sterzik

Prodigy 140 points

Thanks. I did that and it worked.

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MSP432E401Y: ADC channels above 15 don't seem to work